Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Landscape of data formats used for product-data exchange: (a) components of a public key infrastructure and (b) components of a privilege management infrastructure

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: PDQ information usage scenarios (from Ref. [24])

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: X.509 components of public key infrastructure and privilege management infrastructure (from Ref. [39])

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Transformation network

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Example of a transformation network

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Multiple signatures support in STEP 10303-21 edition 3

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Single path versus multipath hierarchical signing

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Multipath flat signing

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Digital signature implementing in QIF 2.1

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: QIF extension for multipath signing strategy support

Date of download: 10/23/2017 Copyright © ASME. All rights reserved. From: Embedding X.509 Digital Certificates in Three-Dimensional Models for Authentication, Authorization, and Traceability of Product Data J. Comput. Inf. Sci. Eng. 2016;17(1):011008-011008-11. doi:10.1115/1.4034131 Figure Legend: Example process for verifying the quality of product data and embedding usage restrictions